xref: /qemu/qobject/qlit.c (revision 7271a819)
1 /*
2  * QLit literal qobject
3  *
4  * Copyright IBM, Corp. 2009
5  * Copyright (c) 2013, 2015, 2017 Red Hat Inc.
6  *
7  * Authors:
8  *  Anthony Liguori   <aliguori@us.ibm.com>
9  *  Markus Armbruster <armbru@redhat.com>
10  *  Marc-André Lureau <marcandre.lureau@redhat.com>
11  *
12  * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
13  * See the COPYING.LIB file in the top-level directory.
14  */
15 
16 #include "qemu/osdep.h"
17 
18 #include "qapi/qmp/qlit.h"
19 #include "qapi/qmp/types.h"
20 
21 static bool qlit_equal_qdict(const QLitObject *lhs, const QDict *qdict)
22 {
23     int i;
24 
25     for (i = 0; lhs->value.qdict[i].key; i++) {
26         QObject *obj = qdict_get(qdict, lhs->value.qdict[i].key);
27 
28         if (!qlit_equal_qobject(&lhs->value.qdict[i].value, obj)) {
29             return false;
30         }
31     }
32 
33     /* Note: the literal qdict must not contain duplicates, this is
34      * considered a programming error and it isn't checked here. */
35     if (qdict_size(qdict) != i) {
36         return false;
37     }
38 
39     return true;
40 }
41 
42 static bool qlit_equal_qlist(const QLitObject *lhs, const QList *qlist)
43 {
44     QListEntry *e;
45     int i = 0;
46 
47     QLIST_FOREACH_ENTRY(qlist, e) {
48         QObject *obj = qlist_entry_obj(e);
49 
50         if (!qlit_equal_qobject(&lhs->value.qlist[i], obj)) {
51             return false;
52         }
53         i++;
54     }
55 
56     return !e && lhs->value.qlist[i].type == QTYPE_NONE;
57 }
58 
59 bool qlit_equal_qobject(const QLitObject *lhs, const QObject *rhs)
60 {
61     if (!rhs || lhs->type != qobject_type(rhs)) {
62         return false;
63     }
64 
65     switch (lhs->type) {
66     case QTYPE_QBOOL:
67         return lhs->value.qbool == qbool_get_bool(qobject_to_qbool(rhs));
68     case QTYPE_QNUM:
69         return lhs->value.qnum ==  qnum_get_int(qobject_to_qnum(rhs));
70     case QTYPE_QSTRING:
71         return (strcmp(lhs->value.qstr,
72                        qstring_get_str(qobject_to_qstring(rhs))) == 0);
73     case QTYPE_QDICT:
74         return qlit_equal_qdict(lhs, qobject_to_qdict(rhs));
75     case QTYPE_QLIST:
76         return qlit_equal_qlist(lhs, qobject_to_qlist(rhs));
77     case QTYPE_QNULL:
78         return true;
79     default:
80         break;
81     }
82 
83     return false;
84 }
85